194647601 has 2 divisors, whose sum is σ = 194647602. Its totient is φ = 194647600.

The previous prime is 194647567. The next prime is 194647613. The reversal of 194647601 is 106746491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193210000 + 1437601 = 13900^2 + 1199^2 .

It is an emirp because it is prime and its reverse (106746491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194647601 - 2¹⁰ = 194646577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (194644601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97323800 + 97323801.

It is an arithmetic number, because the mean of its divisors is an integer number (97323801).

Almost surely, 2^194647601 is an apocalyptic number.

It is an amenable number.

194647601 is a deficient number, since it is larger than the sum of its proper divisors (1).

194647601 is an equidigital number, since it uses as much as digits as its factorization.

194647601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 194647601 is about 13951.6164296471. The cubic root of 194647601 is about 579.5394689487.

The spelling of 194647601 in words is "one hundred ninety-four million, six hundred forty-seven thousand, six hundred one".